[mpeg2] Re: mpex experience

[Thomas Sparr <thomas.sparr@telia.com>]

Hi,

I use a snapshot of MPlayer-20330626.
I just do: mplayer /dev/v4l/video1
I'm a bit confused about the PAT and PMT, how is the continuity_counter 
handled?
Does the saa6752 chip updates them and recalculates the checksum or 
 are the continuity_counter not incremented at all?
This is why I'm thinking of turning it of and supply my own PAT/PMT.

/Thomas

On Saturday 23 August 2003 23.32, you wrote:
> On Friday 22 August 2003 23:58, Thomas Sparr wrote:
> > Hi Andrew,
> >
> > FYI:
> > I got /dev/video1 working with kernel 2.4.20 and the latest driver
> > (saa7134-20030822.tar.gz).
> > Of course, I had to work around pci_name and video_device_alloc/release
> > that's missing in 2.4.20.
> > I had to modprobe saa6752hs after modprobe saa7134 since it was not
> > loaded with it.
> > I ran mplayer directly on the video1 device and got video but no audio
> > and an awful lot of PAT with invalid CRC32. Don't know if you have any
> > use of this but...
> >
> > Is it possible to turn of PAT and PMT generation in the driver?
>
> Yeah, in saa6752hs.c, just comment out the bit where it uploads them..
> somewhere in saa6752hs_reset().
>
> Though its weird you're getting invalid ones. You have to handcode the
> PAT/PMT tables and upload them to the chip when it starts up... I thought
> I'd got it right since VLC was quite happy with it.
>
> Which tool did you use to verify them, so I can sort it out?